121335414445 has 64 divisors (see below), whose sum is σ = 171717603840. Its totient is φ = 80592703488.

The previous prime is 121335414413. The next prime is 121335414449. The reversal of 121335414445 is 544414533121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121335414445 - 2⁵ = 121335414413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121335414449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 70013799 + ... + 70015531.

It is an arithmetic number, because the mean of its divisors is an integer number (2683087560).

Almost surely, 2^121335414445 is an apocalyptic number.

It is an amenable number.

121335414445 is a deficient number, since it is larger than the sum of its proper divisors (50382189395).

121335414445 is a wasteful number, since it uses less digits than its factorization.

121335414445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2294.

The product of its digits is 115200, while the sum is 37.

Adding to 121335414445 its reverse (544414533121), we get a palindrome (665749947566).

The spelling of 121335414445 in words is "one hundred twenty-one billion, three hundred thirty-five million, four hundred fourteen thousand, four hundred forty-five".